Engine Size: 5.4L
Refrigerant Type: R134A
Ambient Temp: 87
Pressure Low: 50
Pressure High: 200
Country of Origin: United States
Just replaced the TXV on the auxiliary (rear A/C) unit. The low pressure lines are wrapped with a black "tar like" material which I partially removed to get the TXV disconnected. Now that my rear system is functioning properly, there is quite a bit of condensation building up on the lines and dripping onto the floor of the equipment compartment. Does anyone know what that black "tar like" material is and where I can get some?
Its called "cork insulation tape" but we always called it "dum-dum" at work......
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......
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